Dispensing attachment for liquid cement containers



H. BACKES 1,963,111

DISPENSING ATTACHMENT FOR LIQUID CEMENT CONTAINERS June 19, 1934.

Filed Jan. 8, 1932 INVENTOR Henry Backe .3

Patented June 19, 1934 UNITED STATES PATENT OFFICE DISPENSING ATTACHMENT FOR LIQUID CEMENT CONTAINERS 1 Claim.

This invention relates to dispensing attachments for containers of semiliquid rubber cement and other similar volatile materials and is a continuation in part of my co-pending application for patent, Serial No. 517,178, filed February 20, 1931.

The principal object of this invention is to provide a dispensing or service attachment for the purpose which may be easily applied in connection with the outlet of the container in which the cement is marketed; and of that type which is so constructed that the container may be inverted and left in an inverted position until it is empty, without the contents being able to fiow from the container except as they are used up.

I have particularly in mind to utilize the attachment in connection with a container for liquid and somewhat volatile cement, such as is used in the shoe-repairing and other industries. This cement is put out in deep cans having relatively small outlets into which a brush cannot very well be dipped. At present sufiicient of the contents of a can for immediate use has to be poured into some other receptacle so as to allow the brush, by which the cement is applied to the parts, to be properly dipped into the cement. This procedure is objectionable for various reasons.

Due to the fact that the cement evaporates very rapidly and that it is volatile, a considerable proportion of the cement is lost in the aggregate, due to the evaporation of the solvent and the hardening and drying out of the residue. Also, the fire hazard is very great owing to the inflammable and explosive nature of the solvent and the cement as a whole, which under present conditions must be somewhat freely exposed to the atmosphere when being used.

The cement of this nature tends to expand in a warm temperature, thereby setting up artificial pressure in the container which tends to cause the dispensing receptacle to overflow until the pressure is relieved. Another object of the invention therefore is to arranged a manually operated valve in connection with the dispensing attachment so that the flow from the container may be positively shut off when the use of the attachment and the cement is temporarily discontinued, as overnight or over week-ends.

With my improved servicing and dispensing attachment the loss from evaporation is practically eliminated and the danger from the fire hazard standpoint is reduced to a minimum.

I have also arranged a hood in connection with the brush which engages the top of the receptacle with an airtight fit when the brush is inserted therein so as to prevent evaporation or drying out of the contents of the receptacle by contact with the air.

A further object of the invention is to produce a simple and inexpensive device and yet one which will be exceedingly effective for the purpose for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claim.

In the drawing similar characters of reference indicate corresponding parts in the several views:

Fig. 1 is a perspective View of the dispensing attachment as applied to a can, the latter being supported by a bracket secured to a bench.

Fig. 2 is a sectional elevation of the attachment.

Fig. 3 is a sectional plane taken on the line 3-3 of Fig. 2.

Referring now more particularly to the characters of reference on the drawing, the cement container of the type for which my attachment is particularly designed to be used, comprises a rectangular body 1, having an outlet 2 on top and toward one corner. To support the container in an inverted position so that its outlet faces down, I provide a special form of bracket which will be described later.

The servicing or dispensing attachment comprises a brush pot 3 from one side of which adjacent the bottom an intake conduit 4 projects. At its outer end the conduit is symmetrically disposed in an upwardly facing flat disc-plate 5, the conduit opening to the top of the plate centrally thereof and being surrounded by a shoulder or flange 6 upstanding from the plate. The plate is larger than the can outlet 2 and serves as the support for a compressible gasket 7 of cork or the like which engages the rim of the outlet and is held in place on the plate by said flange 6. The gasket is held in clamped relation with the outlet by a screw stem 8 mounted in the bottom of the conduit and projecting upwardly through the plate so as to extend through the outlet 2 and into the can. Threaded on the stem is a collar 9 on which is swivelly mounted a bridge 10 of greater diameter than the outlet. In mounting the attachment the bridge is initially canted as shown in dotted lines so that it may be slipped through the outlet. It is then righted so as to engage the can on opposite sides'of the outlet and the screw is then turned so as to clamp the bridge against the interior of the can.

In this manner the attachment is held in place bracket may be attached either regardless of differences in the size of the outlet and said attachment may be turned in a horizontal plane one way or the other as may be most convenient for use, while maintaining a leaf proof connection with the outlet.

With this arrangement the pot will normally remain filled to the top level of the conduit, but with the generation of artificial pressure in the can above the liquid therein, the relatively shallow pot will overflow. I therefore mount a valve in the conduit which is preferably in the form of a horizontal transversely extending screw 11 having threaded engagement with the top and bottom of the conduit from side to side. Said screw when closed bears against a gasket 12 seated in the conduit on the side opposite to that from which the valve projects, as shown in Fig. 3. In this manner the can may be shut 01f from communication with the pot at any time and the pressure in the can will not affect the level of the liquid in the pot.

The bristle portion 13 of a brush of suitable character is adapted to depend into the pot to contact with the liquid therein, the handle 13a of the brush extending a desired distance above the pot. To prevent evaporation of the contents of the pot I mount a circular straight sided hood 14 on the handle adjacent its lower end. The bottom edge of this hood is adapted to snugly contact with the side of the frusto conical mouth 15 of the pot. By this means not only is the brush held from contact with the bottom of the pot but the liquid in the pot is sealed in a air tight manner whenever the brush is placed in the pot so that no evaporation can take place. At the same time there is little if any tendency for the hood to stick to the mouth on account of the very small area of the hood which engages the wall'of the mouth.

To support the can in connection with a bench or wall I provide a bracket comprising a plate 16 having a right angle bend intermediate its ends, on the bottom portion of which the can rests to one side of its outlet. Both portions of the plate are drilled for screws as indicated so that the to a "bench top 17 or against a wall as may be desired. A lip 18 projects along the front edge of the horizontal portion of the plate, from which a spring strip 19 extends upwardly for frictional holding engagement with the side of the can. The can is slid into place on the bracket from one end of the same and is confined between the back plate and the lip, the spring strip preventing any tendency of the can to tilt outwardly. The type of bracket employed however may be changed if desired and must of course be made in different sizes for different sized cans.

I wish to emphasize the fact that my attachment is usable with a standard container of any style or size, in which the substance to be dispensed is marketed, without making changes of any character in such container; and that dispensing is had without the necessity of pouring part of the contents of the container into a separate receptacle for service use.

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claim.

Having thus described my invention what I claim as new and useful and desire to secure by Letters Patent is:

A dispensing attachment for a container having a bottom outlet member depending therefrom; said attachment comprising a dispensing receptacle, a conduit'extending laterally from the same, a flat plate on top of the conduit at its outer end of a size greater than the outlet member, the conduit passage extending to the top surface of the plate, a gasket on the plate about the passage for engagement with the bottom of the outlet member, a screw stem turnably mounted in the bottom of the conduit and projecting upwardly 'therethrough to a point above the plate so that it may extend into the-container through the outlet member, a'collar threaded on the stem, and a bridgeof greater length than the width of the outlet member swivelly mounted on 'the collar.

HENRY BACKES. 

